Could it be made more general then that. Instead of just bombing messages a trigger defined by secondary types. Then you could have different messages for things like Stilettos, Cycs, Helios, and Trebs in FS2 and whatever fits the weapon type for other mods.
As I see it, player-flyable ships are divided into two distinct categories: fighters and bombers.
The generic messages fits just perfect for fighters. And if a wingman congratulates you for a kill or just boasts himself/herself for one, does it really matter with what type of weapon the kill was scored? When a missile is fired, the time delay between the launch and the impact (or miss) is very small. I'd say that during dogfights, the message might not even end playing before the same wingman scores a kill... hence a possible new message.
Bombers, on the other hand, are a different matter. They are big, fat, juicy targets, and they pack a punch. Bombers are a priority when present on the battlefield, either friendly or hostile. So why not pointing out their actions with a couple of messages.
Combined with the new boast messages, this will increase the "battlefield" feel of the game.
While on the bomber topic, I have another suggestion:
A new message (from one of your wingmans) that plays when a enemy bomber fires on a ship on your escort list (with the same restrictions as stated above for the friendly bombers).